1 files changed, 40 insertions, 3 deletions

diff --git a/lib/cdutils.cpp b/lib/cdutils.cpp
index 821d51a..3ab4982 100644
--- a/lib/cdutils.cpp
+++ b/lib/cdutils.cpp
@@ -17,7 +17,7 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-/* $Id: cdutils.cpp,v 1.28 2004-05-02 21:04:45 pixel Exp $ */
+/* $Id: cdutils.cpp,v 1.29 2004-05-03 12:55:04 pixel Exp $ */
 
 #include <stdio.h>
 #include <string.h>
@@ -63,6 +63,20 @@ unsigned long cdutils::from_MSF(unsigned long msf, unsigned long start) {
     return from_MSF(m, s, f, start);
 }
 
+void cdutils::to_MSF(int sect, unsigned char & m, unsigned char & s, unsigned char & f, unsigned long start) {
+    sect += start;
+    f = to_BCD(sect % 75);
+    sect /= 75;
+    s = to_BCD(sect % 60);
+    m = to_BCD(sect / 60);
+}
+
+unsigned long cdutils::to_MSF(int sect, unsigned long start) {
+    unsigned char m, s, f;
+    to_MSF(sect, m, s, f, start);
+    return f | (s << 8) | (m << 16);
+}
+
 Handle * cdutils::open_ppf(String ppf, String comment) throw (GeneralException) {
     int i, l;
 
@@ -255,7 +269,7 @@ void cdutils::read_file(Handle * file, long size, int type, int number) {
     }
 }
 
-void cdutils::write_sector(Byte * buffer, int type, int number) {
+void cdutils::write_sector(Byte * buffer, int type, int number) throw (GeneralException) {
     Byte old_sector[2352], new_sector[2352];
 
     if (type == GUESS) {
@@ -283,7 +297,7 @@ void cdutils::write_sector(Byte * buffer, int type, int number) {
     } else if (ppf_file) {
 	write_ppf(old_sector, new_sector, number);
     } else {
-	printm(M_ERROR, "No writing method for iso file");
+	throw GeneralException("No writing method for iso file");
     }
 }
 
@@ -339,6 +353,29 @@ void cdutils::write_file(Handle * file, long size, int type, int number) {
     }
 }
 
+void cdutils::create_sector(int type, int number, bool eof) throw (GeneralException) {
+    Byte sector[2352];
+    if (!f_iso_w)
+	throw GeneralException("Can't create sector: ISO not in write mode");
+    
+    to_MSF(number, yazedc_o.minute, yazedc_o.second, yazedc_o.frame);
+    memset(sector, 0, 2352);
+    if ((type == MODE2_FORM1) || (type == MODE2_FORM2)) {
+	sector[16] = sector[20] = 0;  // File Number
+	sector[17] = sector[21] = 0;  // Channel Number
+	sector[18] = sector[22] = 8 | (eof ? 129 : 0) |
+	                          (type == MODE2_FORM2 ? 32 : 0);
+	sector[19] = sector[23] = 0;  // Coding Info
+    }
+    yazedc_o.do_encode_L2(sector, type, 0);
+
+    f_iso_w->seek(2352 * number);
+    
+    f_iso_w->write(sector, 2352);
+    
+    sector_seek(number);
+}
+
 void cdutils::show_head_entry(void) {
     printm(M_BARE, "Sector   Size        Date       Time       Flags  Name           XA flags\n");
 }